Depends on the colours - some of the Essie colours are horrible, while others are brilliant. Same with Chanel, OPI and cheaper brands.
I absolutely love Guerlain's polishes - the brush is great, I haven't had a colour that wasn't great (with regards to application, drying time and how long it lasts on the nail).
Dior has the same brush shape, but I find their polishes a bit thicker and therefore not as nice to apply - but I only have a few of them.
Chanel polishes are decent, but the brush isn't nice. Some of the polishes are better to apply and last longer than others.
OPI generally is pretty good.
I have 6 Essie polishes and there are 2 I'm happy with, the rest either dry slowly, apply badly or chip after a short while (less than a day).
Cheaper brands like Essence (Wilko sells it) and Catrice (not sure if sold in the UK, but available in Germany, Switzerland and other countries) are very good. These 2 brands are very good at making dupes of more expensive polishes.
Tom Ford polishes aren't worth the money. They do not dry properly - even after several hours, the polish will dent - and that's even with thin layers. Not pleased about that.
I personally find that using a nail hardener helps my nail polish last longer - it simply doesn't chip as quickly. I use one from Mavala that's applied to the white tip of the nail only, and only used once or twice a week.